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Identifying Trenches using DSM/DTM

Question asked by zcfaynh on Apr 1, 2017
Latest reply on Apr 1, 2017 by zcfaynh

Hi all,


I'm trying to do a study using GIS and I need to identify trenches more than a certain width. I have a raster elevation layer and all I can think about is to first do a flow analysis to identify the flow path as it is where the trenches are likely to be at. However, I am not too sure on how I can get the width of these areas. Anyone has any ideas?